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#101 Re: Not So Free Chat » Appropriate Topics: On War and Politics » 2004-03-16 11:49:22

I believe we need two more divisions of infantry.  Iraq has left us overextended and exposed. I believe we need to spend billions and billions of dollars - - maybe a trillion dollars over the next decade - -

Ouch ! I agree with most what you say Bill, but trillions of dollars certainly not. Keep your money and find other strategies.

Well, maybe out of topic maybe not : in the last number of Scientific American, a US-NASA renomed scientist (I precise that for the republican supporters here who still believe that there is NO global warming, Cf. Dubya who told you so) wrote an article that describe the global warming threat as a TIME BOMB, nothing less.

Here is one scenario : If nothing is done, the Iraqi region will become so dry and desertic that massive human migration will take place, leaving only a minority of people in place. In 20 years, Iraq is an empty place. You don't invest trillions of dollars in an empty place.
To absorb such an enormous amount of money, it takes an industrial infrastructure, and the will of people THERE (not the will of halliburton) to build something. I think Iraqis people have will to build, but to give them so much money is irrealistic. If I had to invest in Iraq, I would invest massively in the basic, education, agriculture and in the forecoming ecological effects of the global warming in that region like massive irrigation and water reserves, and greening the region.

#102 Re: Life on Mars » On the Anthropic principle » 2004-03-16 08:03:38

Our notion of 'time' was created with the big bang and is only an effect we sense (like 'heat' or pain for example) time doesnt exist as a physical object (as far as we know)

I think Time is a physical object. Time is the most important variable in thermodynamic. You probably know the "arrow of time" of Stephen Hawking : time might not be the real physical variable, entropy, might be the real variable.

The arrow of time points in the direction of the increasing entropy.

#103 Re: Not So Free Chat » Appropriate Topics: On War and Politics » 2004-03-16 07:55:43

This is where the Spanish people went wrong.

who knows who is wrong or right. The spanish population in its majority was against the war and against its own government position. that's a fact. Maybe the attentat was just a drop on the top.
Maybe the spanish people thought that their governemnt made too much to liberate other country while interior terrorism (ETA) was left unadressed and they say "now, that's enough"


Anyway, redraw from Irak now or later, what was the option ?
I think Bush plans to redraw part of his troops next summer right ? so why the spanish could not redraw in july too ?

#104 Re: Not So Free Chat » What if we lose? - Vietnam II? » 2004-03-15 16:14:07

The French ban on Muslim head scarves as one example,

Yes Bill, but I hope that it is clear for everybody that ALL signs of religiuos appartenance are now forbidden in french public school. Though it is true that the muslim scarves are the main targeted.
It's good for kids, they are too easily manipulated by groups of interest.

#105 Re: Life on Mars » On the Anthropic principle » 2004-03-15 14:21:31

A link that explain in mathematical terms what is the "dimensional analysis", in this case applied to fluid mechanic.

[http://www.efm.leeds.ac.uk/CIVE/CIVE140 … alysis.htm]http://www.efm.leeds.ac.uk/CIVE....sis.htm

That was in a book of fluid mechanic that I discover that"non dimensional analysis" but it can be applied to other domains.

In the case of an indice of "suitability of life" (see former posts in this thread) I wonder what this indice represents in reality, a probability (or a function of it) ?, or an "amount of life" (the more suitable, the more life there is) ?
What could be an amount of life, does it mean that life is a mesurable quantity ?


So far, the official scientific position is "there is no life" there is only chemistry. Life is a chemical reaction that started 3.8 byears ago on earth (initial state), with many intermediate states more or less stable, and the fun is that we don't know what is the final state. The reaction is not over as long as evolution, contingencies and selection proceed.

#106 Re: Pictures of Mars » Photos from my backyard » 2004-03-15 10:05:21

Here are some pics I took through my telescope this past summer.

Not bad, what's your telescope ?

Also, you're from Montreal. I've been living there too. What's up there ?

#107 Re: Human missions » Hubble mistake - Action needed » 2004-03-13 13:26:26

[http://www.spaceref.com/news/viewsr.html?pid=12183]Lunar Astronomical Observatories

*I haven't yet had the opportunity to read the entire PDF. 

--Cindy

The entire article is interesting. In short, the authors point out that while the moon is still at advantage site for an astronomical observatory compared to low earth orbit, it is at disadvantage compared to Lagrange points (where gravitational forces cancel each other).
For interferometers where several telescopes are requested, it appears that "flight formation" techniques that are necessary  in the case of a space-flying interferometers, can be mastered at the nanometer scale on a baseline of million of Km !. ("relative knowledge positioning at the level of the nm in a base of 5.10^6 km !, actual spacecraft positioning maintain at the  centimeter level in a flying interferometer". With a base of the order of million of kilometers ?, hmmm, I am skeptical here). And that this would be barely more difficult than aligning the telescopes on the lunar ground.
Well, it seems that the Moon is not even a good spot for telescopes anymore.

#108 Re: Human missions » Hubble mistake - Action needed » 2004-03-13 10:53:30

The James Webb Space Telescope is optomized for infrared, not visible light. It will be a useful instrument, whenever we look at things in a new way we make new discoveries, but it's not a real replacement for Hubble.

The James Webb Telescope is the renamed New Generation Space Telescope, which project has been circulating (on internet at least) for more than 10 years now. So it should be in an advanced stage.

I thought that there was a project for an space interferometric telescope in the visible, capable to separate a planet from its mother star. Maybe I am confused with another project, maybe the terrestrial planet finder ?   
In Infrared, the JMST will certainly have an adavantage to detect planets over visible, since the luminosity star/planet ratio is lower in infrared than in visible, but with an optical separation power of only

#110 Re: Not So Free Chat » A bet - Adrian and Josh - discussion » 2004-03-13 07:22:45

And who says Europe doesn't want to go to Mars? They have actually a program with a timeline. (Aurora, i think it's called) Although a slow and not settled in stone scenario, ESA *has* one, nowhere did i see any remotely *official* timeline for Mars on NASA's site, yet...

I know Eurora, it's a little bit the equivalent of the Bush space program. Something safe, advancing step by step, with human on Mars somewhere in the future. It's good, rational and sound. Might never be done.
Our human Settlement on Mars is a little bit of a crazy idea. It's a dream, not a scientific experiment.
Eurora or Bush space initiative have nothing to compare with the Zubrin prophetic visions : an urge to go, now or in the next 15 years.

#111 Re: Not So Free Chat » A bet - Adrian and Josh - discussion » 2004-03-12 23:40:48

Everybody assume that the interest for mars will increase in the future.

Here is a catastroph scenario (for human on Mars) that few people mention : the aging in the population and disinterest in a Mars settlement. What if the occidental countries cannot overcome their aging trend so that the population actually declines and elders become the majority. Yes, the US or europe could colonize Mars in 60 years, BUT, will there be somebody to care about Mars in 60 years ?

As far as I know, America, south and north, was first settled by young and middle aged people right ? how many over 60 were in the Mayflower or in the first french canadian settlements in the north ?

Some of the reasons why I urge to go to Mars NOW, while we can and WANT. Look, the European are old and wise, they don't want to go to Mars, not before the americans show that they can go safely. I hope the american won't become old and wise.

#112 Re: Not So Free Chat » A bet - Adrian and Josh - discussion » 2004-03-12 18:48:08

Who would bet that America would support nuclear propulsion and make a declaration of sending people to Mars?

Oh wait, that was me.  big_smile

It's not the people, it's the times.  :;):

Absolutly It's the time. Nuclear propulsion was tried in the 60/70 ies with the NERVA prototype, so it's not really new. Mars is just the nearest possible place to go AFTER the moon, so it's not a new concept either. Von Braun had a project for Mars already.
Something equivalent to the JFK challenge would be a permanent base on Mars before 2010. You know my point of view Clark. I think that re-doing the moon first and  postponing Mars might be safe at short sight, but not so much if you consider the considerable challenges of the future, on earth this time : global warming, ecological collapses, demographic problems, wars, diseases etc. Anything that could postpone Mars ... definitively.

#113 Re: Not So Free Chat » A bet - Adrian and Josh - discussion » 2004-03-12 17:35:04

Don't compare JFK with Dubya. When JFK made his announcement of a man on the moon BEFORE the next decade, remember we were in the sixties, probably everybody thought he was bluffing, including the russians, because that was a serious bet. The risks were enormous compared with today. This is what I call a serious challenge. Who would bet on that in 1963 ? I wouldn't believe it myself.
Now, Dubya annoucing the Moon by 2010 wow wow, big deal, everybody's impress.

As I said before in one of my favorite jokes, it's probably harder for an american to land in a muslim country WITHOUT a gun and come back alive, than to go to the moon. Here was the real challenge for Dubya, make the world more secure. Leave the Grand announcments to people of the class of J. F. Kennedy.
Beside that, I made a couple of jokes with Clark about a "JFK-like" anouncement to land a man on the moon by the end of 2010, because I found the idea ridiculous and I was sure that actually, he would announce Mars, not the Moon !

As said somebody before : " Le ridicule ne tue plus"

#114 Re: Unmanned probes » Spirit & Opportunity*4* - continue here » 2004-03-11 12:36:52

Does anyone know if the white mark on the second segment of the Bonneville panorama (far side of crater) is pissing pixels or just a harsh glare of reflected light.

I have noticed it too. If it's natural, then it must be a very reflective material, like metallic or alternatively very white, like a pure patch of white salt.

All this lack of public interesting information about the pictures released and other chemical analysis is annoying. I know that the scientist are carefull, but here for example, they would just have to say "the white spot are missing pixels" or "we don't know". No big deal but instead of that we are flooded we much less interesting news : Today Spirit woke up at the sound of "La Marseillaise"....riiiinnnnnng ( Dubya calling)...." Oh I know it is a mistake Mr President, but it was that or waking up Spirit with a CD of Sex Pistols, that's all we have right now"

#115 Re: Unmanned probes » Spirit & Opportunity*4* - continue here » 2004-03-11 12:05:58

The crater interior looks a little bland at first glance, but look at all that luvverly ejecta lying around... bet the geologists are jumping on the spot!  smile

the rover is going to have a hard time to drive through this chaotic terrain. Big sharp stones everywhere.

But I have two questions:

1) Is the composition of the non shiny spherules versus shiny spherules known ?

2) I have this thought recently : when the rat is grinding, that produces certainly a lot of heat, possibly enough to melt ice and some salts. Is there any comments about this ?

#116 Re: Unmanned probes » Spirit & Opportunity*4* - continue here » 2004-03-11 09:10:50

New Opportunity microscopic imager pictures show budding-like concretions. Very similar to budding yeast.

[http://marsrovers.jpl.nasa.gov/gallery/ … 37M2M1.JPG]http://marsrovers.jpl.nasa.gov/gallery....2M1.JPG

what's up in the scientific results and theories (serious only)? I have been in Miami for the last days and far away of Mars stuff, in complete ignorance of what matters in that troubled world.

#117 Re: Water on Mars » Coverage Significant Findings - Bit of a rant... » 2004-03-05 14:37:52

hmmm, could be better, could be worst. There are the martian diaries sometimes on CNN, nicely done.
I wish to have the C-span reports of the rover like before, but I always miss them, or they disapeared ?
All in all, at least there are some reports in the US media, but less that I would like.

What about Mars express, is there any TV coverage in the european channels ?

#118 Re: Unmanned probes » Spirit & Opportunity*4* - continue here » 2004-03-04 13:10:38

If in addition Mars express discovers underground liquid water today, the issue of life, past or present, is going to be the next problem to resolve.
Personnaly I think there is no life today, through I don't reject early prebiotic attempts or even some primitive precellelular organisms, subsequently swept by some event a long time ago in the martian past.
It might be very hard to find these fossils if they didn't had time to spread on the surface, which, we said it before, is in contradiction with the description of the meteorite ALH84001 as containing nanobacteria fossils.
Think about it: if this early life was very local in a tiny spot on MArs and so very rare ( exterminated before it could spread)  then it is unlikely that a meteorite impactor would send us the right fragment with these very rare fossils, meaning that these things in the meteorite are probably not nanobacteria fossiles, but concretions.
If on the opposite, early martian life had time to spread and an impactor indeed sent us nanobacteria fossils, which is then believable, the consequence is that it "should be easy" to find more of these fossils, since they are widespread....

we talked about that before but it's just for the new members here.

#119 Re: Water on Mars » NASA March 2 Announcement is not News - …it’s hydrothermal H2O & volcanics. » 2004-03-03 10:52:55

have some fun questioning and researching the conclusions NASA releases to the public.    (Oh, yes!  ?and about NASA?s claimed discovery of microfossil structures in an Igneous meteorite knocked off of Mars and dumped on earth....)

I tell you, it's just a little sin. It's already hard to stimulate the public to justify the costs, so if you say the mineral concretions aren't fossils, where are you gonna go ?

Do you want cheap missions funded by pizza hut that crash on the surface rather than expensive one that at least have some successful achievment ?
A little bit of sensational advertissement in science and crappy results quickly published to keep the grants alive, we all know that. Scientists should not take themself too seriously, you know.

#120 Re: Water on Mars » NASA March 2 Announcement is not News - …it’s hydrothermal H2O & volcanics. » 2004-03-02 21:29:20

Actually Squyres mentioned 2 hypohesis with this early wet Mars  : either a standing water like a lake slowly evaporating and leaving behind lots of evaporites and salts crystals that were encysted in stones and later on disolved by a second watery event

OR

water percolating trough volcanic ash deposits, but where that water did come frommhe didn't say.

Your post are very informative Mr Toad, but you give the feeling that NASA doesn't play straight and hide informations, like a complot. Am I wrong ?
Do you suggest that NASA voluntarly favorizes a wet-early-Mars-suitable-for-life in order to fund her future mission more easily ?
If it's true, which I am not sure, It's just a little sin Mr Toad.
Not a big deal as long as the people really interested in Mars know the real story. Science is rarely fair anyway. There is always plenty of politic and trichery behind the pure researchers in white labcoat in their dungeon.

#121 Re: Not So Free Chat » Thomas Paine [1737 - 1809] » 2004-03-02 11:42:44

Thomas Paine advocated the following:
1. The abolition of slavery.

My comments about that, here he was just in the "air du temps" meaning the idea that slavery was unacceptable was already there.

2. Protection for animals, i.e. prevention of cruelty to animals.

Here he seems much in advance on his time. Today, such an idea seems obvious but 200 years ago, not so. I am surprised.

3. Justice for women, and women's rights.

Here also I think the idea of women rights was present already at his time.

4. The education of children of the poor at public expense.

Ouch ! here is an idea very very much in advance on his time. "at public expense " ? wow, even now, the issue is not settled.

5. The purchase of the expansive Louisiana Territory.

well, that made sense. Not a very premonitory opinion here.

#122 Re: Not So Free Chat » Race and Culture - A Changing Europe - Opening a mighty can of worms... » 2004-03-01 11:29:15

The money, the money, always the money.

This unites us all in cross-cultural unity. smile

It has not always been like that. During the "enlightment" period that Cindy describes so well, money was respected but not worshiped. Human values were most important I believe.
Before, if you think about the old nobility in Europe, Money was even not an issue. That is what make the middle age so attractive, you could be respected for your courage, chivalry and generosity much more than for you richness. Actually, the "rich bourgeois" were maybe feared for their power and richness, but in no case considered as moral icons. Religion and Chivalry were the symbol of purity and good moral, not the bourgeois.
Unfortunatly we all know that the church often succumbed to the power of evil, money, power and now flesh. The Chivalry spirit also succumbed to its "inadaptation" to modern world values : the "preux chevalier without fear and reproach" killed by money-driven mercenaries by a bullet in the back.

From time to times, you can still meet some of these living fossils : they all show complete disdain for money and for dangerous situations. And of course, they ignore the stock market, unbelievable !

#123 Re: Not So Free Chat » Race and Culture - A Changing Europe - Opening a mighty can of worms... » 2004-03-01 10:39:01

Any foreigner should respect the uses and coutumes of their host country and most importantly the law. Also, there is a sense of fairness that would suggest that exploiting the generosity and naive side of naturally good people of the host country, is unfair.

This is true for those who exploit the immigrants, for selfish profit but also true for the immigrants that gets involved in all sort of trafic and crimes, also for selfish profit. Money rules.

I don't understand, for example, why many of the first italian/sicilian that came to america tried to reinstall the mafia since they had the oportunity to start over from scratch by hard and honest work. The money, the money, always the money.

#124 Re: Water on Mars » Is Rover evidence arguing against water? - Is Rover evidence arguing against water? » 2004-02-28 11:00:45

I agree with Mr Toad. The public broaccasting media stuff could be more better done, but, maybe this is the trend in Mars science. Mars Express releases barely a picture every 2 weeks.
The only thing that is equaly shared by the scientists and the public are the taxes payed to fund these project.

Also, at the begining of the rover mission, Jen. Trosper warned that no raw data will be released to the public at the exception of the pictures, because "(these raw data) wouldn't make sense for the public, anyway".
Well, I don't agree, there are geologists and chemists in the world that would be perfectly able to understand the data, like Mr Toad maybe ?
But I don't agree with Toad that NASA cares whatever the results suggest water or no water. Why ? because if there is no standing water in the past, Mars loose all its interest and all future missions are compromised ?

#125 Re: Not So Free Chat » Conservatives, Moderates, Liberals » 2004-02-20 14:30:41

Gay Marriage ban is stright from Karl Rove, Bush's political sith lord.

The nation is currently divided 45 pro 55 against gay maariage.

Karl Rove is pushing bush to not just support but actively persue a constitutional amendment.

In this election, the Republicans have realized that the nation is rather evenly divided.  Who will win will be determined by who can get their base out.  GOTV efforts will win or lose this election.

Rove is a master at this kind of play.  Rove will force Kerry to either take an unpopular stand, or act against his base.

Kerry to date has implied that he may (or may not) support a Federal constitution ban on gay marrage.

Obviously he is hoping to avoid the issue entirely.  But Bush and Rove will force the issue, and he will either make the chose to take a stand on an unpopular issue or alienate his base supporters.

Recently Paul Bremer has denied the fundation of an Iraqi government based on the islam religion, meanwhile, the US governement denies gay marriage based on the fact that the law must reflect the definition of marriage in the christian religion.

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